CVE-2026-8975Disclosure(mozilla / firefox)

LOWCVSS 8.8 · HIGH

Signal is active with 2 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

Memory safety bugs present in Firefox ESR 115.35, Firefox ESR 140.10 and Firefox 150. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 151, Firefox ESR 115.36, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.

0.0/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-119CWE-787

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • firefox
  • thunderbird

Threat summary

  • 2 mentions across 1 observed day

What's happening

  • Technical details provided in 1 signal
  • Disclosure: 1 classified signal
  • General: 1 classified signal
  • 2 total mentions across 1 day

Affected systems

Vendors
Products
firefoxthunderbird

Deep dive

Activity timeline2 mentions / 1d
01122Mentions · 2026-05-19: 2Technical Details · 2026-05-19: 105-19
Signal classification2 categories
Disclosure
150.0%
General
150.0%
Referenced assets2 URLs
Full discourse2 posts
  • CVE@CVEnew
    Disclosure

    CVE-2026-8975 Memory safety bugs present in Thunderbird 140.10 and Thunderbird 150. Some of these bugs showed evidence of memory corruption and we presume that with enough effort som… https://www.cve.org/CVERecord?id=CVE-2026-8975

    Post summary

    The post announces CVE‑2026‑8975, describing memory safety bugs affecting Thunderbird 140.10 and 150 that could lead to memory corruption.

    00000138
    57.5K followersView on X
  • Vulmon Vulnerability Feed@VulmonFeeds
    General

    CVE-2026-8975 Memory Safety Bugs in Firefox ESR 115.35, ESR 140.10, and Firefox 150 https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-8975

    Post summary

    The post merely references a vulnerability listing for CVE-2026-8975 (Firefox memory safety bugs) without providing any additional details, tools, or indicators of exploitation.

    0000063
    4.0K followersView on X
CPE platform detail4 entries

4 of 4 entries

PartVendorProductVersionTarget SWTarget HW
Appmozillafirefox---
Appmozillafirefox---
Appmozillathunderbird---
Appmozillathunderbird---

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